Presto 09924 Pressure Cooker Sealing Ring/Overpressure Plug Pack (Super 6 & 8 Quart) The product is Pressure Cooker Sealing Ring With Automatic Air Vent, 8 QT Pressure Cookers. Easy and simple use kit The product is manufactured in China Includes Overpressure Plug Fits Presto Pressure Cooker models: 0128202, 0128203, 0128204, 0128303 Does not fit cooker # 01370